JP6281377B2 - Light mounting structure for construction machinery - Google Patents

Description

  The present invention relates to a light mounting structure for a construction machine.

  2. Description of the Related Art Conventionally, when working in a dark place such as at night, a configuration is known in which a housing (light) is attached to the front side of a hydraulic excavator to brightly illuminate the work site (for example, Patent Document 1). reference).

  In the invention of Patent Document 1, by hooking a substantially inverted U-shaped mounting bracket from the upper side to the left position of the intermediate frame in the handrail, and fixing the lights to both leg ends of the mounting bracket, A configuration in which a light is suspended from an intermediate frame is disclosed.

Japanese Patent No. 3790444

  By the way, an operator may drive the construction machine with a posture in which a foot is placed on the intermediate frame of the handrail. However, in the invention of Patent Document 1, since the light is suspended at the left position of the intermediate frame so that the light does not interfere with the traveling lever, the space for the operator to set foot on the intermediate frame is reduced. There's a problem.

  This invention is made | formed in view of this point, The objective is to ensure enough footrest space of the operator in a fence member.

  The present invention relates to a lower traveling body, an upper revolving body that is turnably mounted on the lower traveling body, a driving seat that is provided on the upper revolving body and is seated by an operator, and a vehicle front side relative to the driving seat. A traveling lever for operating the lower traveling body, and a fence member disposed on the front side of the vehicle with respect to the traveling lever, for attaching a light member for illuminating the front of the vehicle to the fence member The following solutions were taken for the light mounting structure of construction machinery.

That is, according to the first aspect of the present invention, the fence member includes a pair of struts that are erected at positions away from the traveling lever in both the vehicle width direction and the strut portions extending in the vehicle width direction. A reinforcing beam portion to be connected,
The light member has an irradiation part that illuminates the front of the vehicle, an attachment part that is attached to the reinforcing beam part, and a support part that supports the irradiation part by connecting the irradiation part and the attachment part.
The irradiation unit is disposed at a position where at least a part of the irradiation unit overlaps the traveling lever when viewed from the front, while the attachment unit is positioned so as not to overlap the traveling lever when viewed from the front and between the support column. It is arranged at a position near the traveling lever so that a predetermined footrest space is provided .

  In the first aspect of the invention, since the irradiation unit is disposed at a position overlapping the traveling lever in front view, the irradiation unit can be prevented from jumping out in the vehicle width direction from the traveling lever. Thereby, the operator's footrest space in the reinforcing beam portion can be sufficiently secured. In addition, since the mounting portion is disposed at a position that does not overlap the traveling lever, the mounting portion does not interfere with the traveling lever.

According to a second invention, in the first invention,
The fence member has a handrail portion that extends in a vehicle width direction at a position above the reinforcing beam portion and connects the support columns.

  In the second invention, since the support columns are connected by the handrail portion extending in the vehicle width direction at a position above the reinforcing beam portion, the rigidity of the fence member can be increased by the reinforcing beam portion and the handrail portion. .

According to a third invention, in the first or second invention,
The support portion is connected to the vehicle front side with respect to the center position of the reinforcing beam portion in a side view of the attachment portion.

  In the third aspect of the invention, the support portion is provided on the front side of the vehicle with respect to the center position of the reinforcing beam portion in a side view of the mounting portion, whereby the irradiation portion is disposed on the front side of the vehicle with respect to the reinforcing beam portion. Interference with can be reliably avoided.

According to a fourth invention, in any one of the first to third inventions,
The attachment portion is arranged at a position shifted in the vehicle width direction with respect to the center position of the irradiation portion in the vehicle width direction.

  In the fourth invention, the mounting portion is disposed at a position shifted in the vehicle width direction from the center position of the irradiation portion, so that the mounting portion is disposed at a position that does not overlap the traveling lever in front view, Most of the irradiating part can be disposed at a position overlapping the traveling lever. Thereby, it can suppress that an irradiation part jumps out to the operator's footrest space side, and can fully secure a footrest space.

According to a fifth invention, in any one of the first to fourth inventions,
A working device disposed at a position closer to one end side in the vehicle width direction than the travel lever so as to be able to move up and down on the vehicle front side of the upper swing body;
The mounting portion is arranged at a position closer to the other end side in the vehicle width direction than the travel lever.

  In the fifth aspect of the present invention, since the attachment portion is disposed on the opposite side of the working device with the travel lever interposed therebetween, the working device and the light member can be separated. Thereby, when the front of the vehicle is illuminated with the light member, it is possible to reduce the occurrence of the shadow of the work device.

  According to the present invention, since the irradiation unit is disposed at a position overlapping the traveling lever in front view, the irradiation unit can be prevented from jumping out in the vehicle width direction from the traveling lever. Thereby, the operator's footrest space in the reinforcing beam portion can be sufficiently secured. In addition, since the mounting portion is disposed at a position that does not overlap the traveling lever, the mounting portion does not interfere with the traveling lever.

It is a side view which shows the structure of the construction machine which concerns on this embodiment. It is a perspective view which shows the structure of a light member. It is a side view which shows the state which attached the light member to the fence member. It is a rear view which shows the state which attached the light member to the fence member. It is a rear view which shows the state which attached the light member which concerns on this modification to the fence member.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature and is not intended to limit the present invention, its application, or its use. In each figure, the up / down and front / rear / left / right directions are indicated by arrows. Unless stated otherwise, the vertical direction will be described according to the directions indicated by these arrows.

  As shown in FIG. 1, the construction machine 10 is a small model of a small rear turning type, and includes a crawler type lower traveling body 11 and an upper turning body 12 that is turnably mounted on the lower traveling body 11. ing.

  An engine room for housing equipment such as an engine (not shown) is provided on the rear side of the upper swing body 12 and is covered with an engine cover 15. On the right side of the upper swing body 12, a side machine room for accommodating a fuel tank, a hydraulic oil tank, etc. (not shown) is provided and covered with a machine room cover 16. On the left side of the upper swing body 12, an operation space 17 having an operation seat 22 and an operation lever 23 for an operator to sit on is disposed.

  A pair of left and right canopy columns 25 are erected on the right and left rear positions of the operation seat 22. The upper ends of the pair of left and right canopy columns 25 are connected by a beam portion (not shown) extending so as to project forward. A roof 26 is attached to the upper end portion and the beam portion of the pair of left and right canopy struts 25 to protect the operator against falling objects from overhead.

  A working device 13 is attached to the front side of the upper swing body 12 and is supported so as to be able to move up and down and swing in the left-right direction. The working device 13 is for performing excavation work or the like, and has a boom 13a whose base end is pivotally attached to a central portion in the vehicle width direction of the upper swing body 12 via a swing bracket 14, and a boom. It has the arm 13b attached to the front end side of 13a so that rotation was possible, and the bucket 13c attached to the front end side of arm 13b so that rotation was possible.

  In the construction machine 10, by operating the operation lever 23 or the like, the working device 13 can be moved up and down by extending and contracting the hydraulic cylinders 13d corresponding to the boom 13a, the arm 13b, and the bucket 13c. Further, by extending and retracting a swing cylinder (not shown), the working device 13 can be moved in a swingable manner in the left-right direction.

  A traveling lever 28 extending upward from the floor surface of the upper swing body 12 is provided on the vehicle front side of the driving seat 22. The lower traveling body 11 can be moved forward or backward by operating the traveling lever 28 in the front-rear direction. A traveling pedal 29 is provided in the vicinity of the base end portion of the traveling lever 28 on the floor surface of the upper swing body 12. The lower traveling body 11 can be advanced by depressing the traveling pedal 29.

  A pipe-shaped fence member 30 is disposed on the vehicle front side of the movable range of the travel lever 28. Hereinafter, a light mounting structure for mounting the light member 40 illuminating the front of the vehicle to the fence member 30 will be described.

  As shown in FIG. 2, the light member 40 includes an irradiation part 41 that illuminates the front of the vehicle, an attachment part 45 attached to the reinforcing beam part 33 (see FIG. 3) of the fence member 30, and a base end part to the attachment part 45. It has a support part 42 that supports the irradiation part 41 by being connected and having an upper end connected to the irradiation part 41. A harness 41 a is connected to the irradiation unit 41.

  As shown in FIG. 3 and FIG. 4, the fence member 30 includes a pair of support columns 31 erected at intervals in the vehicle width direction, and a handrail that extends in the vehicle width direction and connects the upper ends of the support columns 31. And a reinforcing beam portion 33 that extends in the vehicle width direction at a position lower than the handrail portion 32 and connects the column portions 31 to each other.

  As shown in FIG. 2, the attachment portion 45 of the light member 40 is formed by a pair of upper and lower clamp portions 46 that sandwich the reinforcing beam portion 33. A groove portion 47 having substantially the same curvature as the outer peripheral surface of the reinforcing beam portion 33 is formed on the clamping surface of the clamp portion 46. The pair of upper and lower clamp parts 46 are clamped and fixed to each other by the fastening bolts 50 so as to sandwich the reinforcing beam part 33. In addition, although mentioned later in detail, the attaching part 45 is arrange | positioned in the position which does not overlap with the traveling lever 28 by front view.

  The support part 42 has a support bracket 42a bent in a U-shaped cross section so that the upper part is open, and a support shaft part 42b extending downward from a substantially central position in the vehicle width direction of the support bracket 42a. An irradiation unit 41 is disposed between the support brackets 42a. A fastening bolt 50 is inserted through the upper end portion of the support bracket 42a so as to extend in the vehicle width direction, and is fastened and fixed to the left and right side surfaces of the irradiation unit 41. The irradiation unit 41 can adjust the irradiation angle by rotating around the fastening bolt 50.

  The base end portion of the support shaft portion 42b is connected to a position shifted by a predetermined distance a from the center position of the reinforcing beam portion 33 to the vehicle front side in a side view of the upper clamp portion 46. Thereby, the irradiation part 41 will be arrange | positioned rather than the reinforcement beam part 33 at the vehicle front side, and interference with the traveling lever 28 can be avoided reliably.

  Moreover, since the irradiation part 41 is supported above the attachment part 45 via the support part 42, the irradiation position of the irradiation part 41 can be made high and the adjustment range can be expanded, and the foot of the construction machine 10 can be extended. Can be fully illuminated. Further, even when the operator puts his / her foot on the travel pedal 29 and operates it, the operator's foot does not interfere with the light member 40.

  As shown in FIG. 4, the irradiation part 41 is arrange | positioned in the position which at least one part overlaps with the traveling lever 28 by front view. On the other hand, the attachment portion 45 is disposed at a position that does not overlap the traveling lever 28 in a front view. Specifically, the attachment portion 45 is disposed on the side opposite to the work device 13 with the traveling lever 28 interposed therebetween. In the present embodiment, since the working device 13 is disposed on the right side of the vehicle with respect to the travel lever 28, the attachment portion 45 is disposed on the left side of the vehicle with respect to the travel lever 28.

  With such a configuration, it is possible to suppress the irradiation unit 41 from jumping out in the vehicle width direction from the travel lever 28. Thereby, the operator's footrest space S in the reinforcing beam portion 33 can be sufficiently secured.

<Modification>
FIG. 5 is a rear view showing a state in which the light member according to this modification is attached to the fence member. In the following, the same parts as those in the above embodiment are denoted by the same reference numerals, and only the differences will be described.

  As shown in FIG. 5, the support portion 42 of the light member 40 has a support bracket 42a bent in a U-shaped cross section so that the upper portion is open, and a leftward direction with respect to the center position of the support bracket 42a in the vehicle width direction. And a support shaft portion 42b extending downward from a position shifted by a predetermined distance b. An irradiation unit 41 is disposed between the support brackets 42a. A fastening bolt 50 is inserted through the upper end portion of the support bracket 42a so as to extend in the vehicle width direction, and is fastened and fixed to the left and right side surfaces of the irradiation unit 41.

  The base end portion of the support shaft portion 42 b is connected to the upper clamp portion 46 in the attachment portion 45. Thereby, the attachment part 45 will be arrange | positioned in the position shifted to the left with respect to the center position of the irradiation part 41 of the vehicle width direction.

  With such a configuration, it is possible to arrange most of the irradiation unit 41 at a position overlapping the traveling lever 28 while disposing the mounting portion 45 at a position not overlapping the traveling lever 28 in front view. Thereby, it can suppress that the irradiation part 41 jumps out to the operator's footrest space S side, and can fully secure the footrest space S.

  In this modification, the support shaft portion 42b is extended downward from the lower surface of the support bracket 42a. However, the attachment portion 45 is attached to the vehicle by extending the support shaft portion 42b downward from the left side surface of the support bracket 42a. You may make it shift to the width direction.

<< Other Embodiments >>
About the said embodiment, it is good also as following structures.

  In the present embodiment, a canopy structure in which a pair of left and right canopy posts 25 is erected on the right and left rear positions of the driving seat 22, and the reinforcing beam of the fence member 30 provided in front of the driving seat 22. Although the structure which attached the light member 40 to the part 33 was demonstrated, it is not limited to this form. For example, a canopy structure in which four canopy struts 25 are erected at four corners on the front, rear, left, and right sides of the driving seat 22, and a pair of left and right canopy struts 25 disposed on the front side are connected by a reinforcing beam 33. The light member 40 may be attached to the reinforcing beam portion 33.

  In the present embodiment, the mounting portion 45 of the light member 40 is disposed on the opposite side (the vehicle left side) of the work device 13 with the traveling lever 28 interposed therebetween, but the present invention is not limited to this configuration. For example, when the footrest space S in the reinforcing beam portion 33 is wider on the work device 13 side (the vehicle right side), priority is given to securing the footrest space S, and the mounting portion 45 is disposed on the vehicle right side. May be. In addition, when the mounting portion 45 is disposed on the right side of the vehicle and the overall length of the harness 41a of the irradiating portion 41 can be shortened, the mounting portion 45 is disposed on the right side of the vehicle in favor of the routing workability of the harness 41a. You may make it install.

  Moreover, although the rail member 30 of the structure by which the handrail part 32 and the reinforcement beam part 33 were integrally formed by a pair of support | pillar part 31 was demonstrated in this embodiment, it is not limited to this form. For example, the structure which provided separately the fence member which has the handrail part 32, and the fence member which has the reinforcement beam part 33 for attaching the light member 40 may be sufficient.

  As described above, the present invention provides a highly practical effect that a sufficient space for the operator's footrest in the fence member can be secured, and thus is extremely useful and highly industrially applicable.

DESCRIPTION OF SYMBOLS 10 Construction machine 11 Lower traveling body 12 Upper revolving structure 13 Working device 22 Driving seat 28 Traveling lever 30 Fence member 31 Supporting column part 32 Handrail part 33 Reinforcement beam part 40 Light member 41 Irradiation part 42 Support part 45 Attachment part

Claims (5)

A lower traveling body, an upper revolving body that is turnably mounted on the lower traveling body, a driving seat that is provided on the upper revolving body and is seated by an operator, and that is disposed in front of the driving seat relative to the driving seat. A construction machine for attaching a light member for illuminating the front of the vehicle to the fence member, the vehicle lever comprising: a travel lever for operating the lower traveling body; and a fence member disposed on the vehicle front side of the travel lever. Mounting structure,
The fence member has a pair of support columns that are erected at positions away from the traveling lever in the vehicle width direction , and reinforcing beam portions that extend in the vehicle width direction and connect the support columns to each other. ,
The light member has an irradiation part that illuminates the front of the vehicle, an attachment part that is attached to the reinforcing beam part, and a support part that supports the irradiation part by connecting the irradiation part and the attachment part.
The irradiation unit is disposed at a position where at least a part of the irradiation unit overlaps the traveling lever when viewed from the front, while the attachment unit is positioned so as not to overlap the traveling lever when viewed from the front and between the support column. A light mounting structure for a construction machine, wherein the light mounting structure is disposed at a position closer to the travel lever so that a predetermined footrest space is provided . In claim 1,
The light attachment structure for a construction machine, wherein the fence member has a handrail portion that extends in a vehicle width direction at a position higher than the reinforcing beam portion and connects the column portions. In claim 1 or 2,
The light attachment structure for a construction machine, wherein the support portion is connected to the vehicle front side with respect to the center position of the reinforcing beam portion in a side view of the attachment portion. In any one of claims 1 to 3,
The light attachment structure for a construction machine, wherein the attachment portion is disposed at a position shifted in the vehicle width direction with respect to a center position of the irradiation portion in the vehicle width direction. In any one of claims 1 to 4,
A working device disposed at a position closer to one end side in the vehicle width direction than the travel lever so as to be able to move up and down on the vehicle front side of the upper swing body;
The light attachment structure for a construction machine, wherein the attachment portion is disposed at a position closer to the other end side in the vehicle width direction than the travel lever.

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